/*
- Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2020 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
+
+#include "audio_stream.h"
+#include "content.h"
#include "piece.h"
-#include "player.h"
+#include <boost/foreach.hpp>
+
+using std::copy;
+using std::list;
using boost::shared_ptr;
-Piece::Piece (shared_ptr<Content> c)
- : content (c)
- , video_position (c->position ())
- , audio_position (c->position ())
- , repeat_to_do (0)
- , repeat_done (0)
+
+Piece::Piece (shared_ptr<Content> c, shared_ptr<Decoder> d, FrameRateChange f)
+ : _frc (f)
+ , _done (false)
{
+ _content.push_back (c);
+ _decoder.push_back (d);
+ if (c->audio) {
+ BOOST_FOREACH (AudioStreamPtr i, c->audio->streams()) {
+ _stream_last_push_end[i] = c->position();
+ }
+ }
}
-Piece::Piece (shared_ptr<Content> c, shared_ptr<Decoder> d)
- : content (c)
- , decoder (d)
- , video_position (c->position ())
- , audio_position (c->position ())
- , repeat_to_do (0)
- , repeat_done (0)
+
+void
+Piece::update_pull_to (DCPTime& pull_to) const
{
+ if (_done) {
+ return;
+ }
+ for (map<AudioStreamPtr, DCPTime>::const_iterator i = _stream_last_push_end.begin(); i != _stream_last_push_end.end(); ++i) {
+ if (i->second < pull_to) {
+ pull_to = i->second;
+ }
+ }
}
-/** Set this piece to repeat a video frame a given number of times */
+
void
-Piece::set_repeat (IncomingVideo video, int num)
+Piece::set_last_push_end (AudioStreamPtr stream, DCPTime end)
+{
+ DCPOMATIC_ASSERT (_stream_last_push_end.find(stream) != _stream_last_push_end.end());
+ _stream_last_push_end[stream] = end;
+}
+
+
+DCPTime
+Piece::position () const
+{
+ return _content[0]->position();
+}
+
+
+DCPTime
+Piece::end (shared_ptr<const Film> film) const
+{
+ return _content[0]->end(film);
+}
+
+
+DCPTime
+Piece::content_video_to_dcp (Frame f) const
+{
+ /* It might seem more logical here to convert s to a ContentTime (using the FrameRateChange)
+ then convert that ContentTime to frames at the content's rate. However this fails for
+ situations like content at 29.9978733fps, DCP at 30fps. The accuracy of the Time type is not
+ enough to distinguish between the two with low values of time (e.g. 3200 in Time units).
+
+ Instead we convert the DCPTime using the DCP video rate then account for any skip/repeat.
+ */
+
+ DCPTime const d = DCPTime::from_frames(f * _frc.factor(), _frc.dcp) - DCPTime(_content[0]->trim_start(), _frc);
+ return d + position();
+}
+
+
+DCPTime
+Piece::resampled_audio_to_dcp (shared_ptr<const Film> film, Frame f) const
{
- repeat_video = video;
- repeat_to_do = num;
- repeat_done = 0;
+ /* See comment in dcp_to_content_video */
+ return DCPTime::from_frames(f, film->audio_frame_rate()) - DCPTime(_content[0]->trim_start(), frc) + position();
}
+
+ContentTime
+Piece::dcp_to_content_time (shared_ptr<const Film> film, DCPTime t) const
+{
+ DCPTime s = t - position();
+ s = min (_content[0]->length_after_trim(_film), s);
+ return max (ContentTime(), ContentTime(s, _frc) + _content[0]->trim_start());
+}
+
+
+DCPTime
+Piece::content_time_to_dcp (ContentTime t) const
+{
+ return max (DCPTime(), DCPTime(t - _content[0]->trim_start(), _frc) + position());
+}
+
+
void
-Piece::reset_repeat ()
+Piece::add_fonts (list<shared_ptr<Font> >& fonts) const
+{
+ BOOST_FOREACH (shared_ptr<Content> i, _content) {
+ BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
+ /* XXX: things may go wrong if there are duplicate font IDs
+ with different font files.
+ */
+ list<shared_ptr<Font> > f = j->fonts ();
+ copy (f.begin(), f.end(), back_inserter(fonts));
+ }
+ }
+}
+
+
+optional<DCPTime>
+Piece::position (shared_ptr<const Film> film)
{
- repeat_video.image.reset ();
- repeat_to_do = 0;
- repeat_done = 0;
+ if (_done) {
+ return optional<DCPTime>();
+ }
+
+ DCPTime const t = content_time_to_dcp (max(_decoder[0]->position(), _content[0]->trim_start()));
+ if (t > end(film)) {
+ _done = true;
+ return optional<DCPTime>();
+ }
+
+ return t;
}
+
bool
-Piece::repeating () const
+Piece::has_text () const
{
- return repeat_done != repeat_to_do;
+ return !_decoder[0].text.empty();
}
+
void
-Piece::repeat (Player* player)
+Piece::pass () const
{
- player->process_video (
- repeat_video.weak_piece,
- repeat_video.image,
- repeat_video.eyes,
- repeat_video.part,
- repeat_done > 0,
- repeat_video.frame,
- (repeat_done + 1) * (TIME_HZ / player->_film->video_frame_rate ())
- );
-
- ++repeat_done;
+ _done = _decoder[0]->pass();
}
projects / dcpomatic.git / blobdiff